702 REPORTS OF ASTRONOMICAL OBSERVATORIES. 



Lemberg, Austria. 

 Observatory of the University 



Leyden, Holland. 



Bijl'S Observatorium. 



Longitude from Greenwich, 17™ 56^35 E. 

 Latitude, 52o 9' 20" N. 

 Directors: J. GoLius, 1632; 



S. 0. Kechel, 16G7; 



C. Melder, 1GG8; 



B. DE YoLDER, 1682; 



L. ZUMBACH DE KOESFELD, 1705; 



W. J. s'Grayesrude, 1717 ; 

 J. LuLOFS, 1742 ; 



D. VAN DE WlJNPRESSE, 1768; 

 p. NiEUWLAND, 1794; 



J. A. Fas, 1797; 



J. F. Van Beek-Calkoen, 1799 ; 



C. E. Kama, 1812 ; 

 F. Kaiser, 1837 ; 



H. G. VAN DE Lande Bakhuijzen, 1872. 

 Founded in 1632. The most ancient of existing Observatories in 

 . Europe. Originally built, as a great tower for the town clock, 1636. 

 Enlarged in 1689. Eepaired in 1817. In 1858 a new Observatory was 

 commenced, and completed in 1860. 



Leyton, Essex, England. 

 Barclay Observatory. 



Longitude from Greenwich, 0^87 W. 



Xatitude, 51° 34' 34". 



Authority for latitude and longitude. Ordnance Survey. 



Director : Charles George Talmage, F. E. A. S. 

 Instruments : 



(ft) Meridian circles : makers, Houghton and Sejims ; diameter of cir- 

 cles, 36 inches, divided to 5'; read by 4 microscopes to 0". 1; aperture 

 of objective, 4 inches ; for observations of the sun aperture employed, 4 

 incbes; magnifying power ordinarily employed, 80 diameters. 



(c) Equatorial instrument: maker, Cooke, York; aperture of objec- 

 tive, 10 inches ; magnifying power of eye-pieces, 70 to 1200. 



{g) Clock: sidereal; maker, Simmonds, London. 



